Summary of the invention
A kind of radiofrequency melting instrument of offer, the control method of radiofrequency melting instrument and device are provided, withSolve the problem that in prior art, the accuracy of radiofrequency melting instrument output energy is low.
To achieve these goals, an aspect according to embodiments of the present invention, it is provided that a kind of radiofrequency melting instrument.RootInclude according to the radiofrequency melting instrument of the present invention: temp detecting controller, be connected with master control set, be used for obtaining target pairThe temperature data of elephant；Radio frequency detection control apparatus, is connected with master control set, for obtaining the rf data of destination object；Master control set, for generating control signal according to temperature data and rf data；RF powder control device, with master controlDevice connects；Rf power amplifier circuit, is connected between RF powder control device and ablating device, radio-frequency powerControl device and export radio-frequency (RF) energy according to control signal control rf power amplifier circuit by ablating device, wherein, penetrateFrequently energy is used for ablation targets object；Supply unit, with master control set, temp detecting controller, radio frequency detection controlDevice processed, RF powder control device and rf power amplifier circuit connect, and are used for as master control set, temperature detectionDevice, radio frequency detection control apparatus, RF powder control device and rf power amplifier circuit offer work electricity are providedPressure.
Further, radio frequency detection control apparatus includes: first processor, by SPI serial peripheral interface bus withMaster control set connects, for receiving the instruction of master control set and uploading rf data to master control set；Radiofrequency melting instrument is alsoIncluding: at least one road impedance detection circuit, it is connected with first processor, for the impedance of detected target object；At leastOne tunnel radio-frequency voltage testing circuit, is connected with first processor, for the radio-frequency voltage of detected target object；At least oneRoad radio-frequency current testing circuit, is connected with first processor, for the radio-frequency current of detected target object, wherein, penetratesFrequency is according to including impedance, radio-frequency voltage and radio-frequency current.
Further, radiofrequency melting instrument also includes: neutral electrode detection circuit, is connected with first processor, is used for examiningSurvey the connection status of neutral electrode；First processor is additionally operable to upload the connection status of neutral electrode to master control set.
Further, supply unit includes: power input interface, for input AC electricity；First AC/DC changeover switch,It is connected with power input interface, for alternating current being converted to the first unidirectional current；Second AC/DC changeover switch, is connected toBetween power input interface and rf power amplifier circuit, it is radio-frequency power for alternating current is converted to the second unidirectional currentAmplifying circuit provides running voltage；Dc chopper device, including: the first direct current transducer, it is connected to the first friendship straightBetween stream transformer and master control set, for the first unidirectional current is converted to the 3rd unidirectional current for master control set offer workVoltage；Second direct current transducer, is connected between the first direct current transducer and RF powder control device, for by theThree unidirectional currents are converted to the 4th unidirectional current and provide running voltage for RF powder control device；3rd direct current transducer, evenIt is connected between the first AC/DC changeover switch and the 4th direct current transducer, for the first unidirectional current is converted to the 5th unidirectional current；4th direct current transducer, is connected with temp detecting controller and radio frequency detection control apparatus, for by the 5th unidirectional currentBe converted to the 6th unidirectional current and provide running voltage for temp detecting controller and radio frequency detection control apparatus, wherein, theTwo unidirectional currents, the 3rd unidirectional current, the 4th unidirectional current, the 5th unidirectional current and the 6th galvanic magnitude of voltage are different fromOne galvanic magnitude of voltage.
Further, temp detecting controller includes: the second processor, by SPI serial peripheral interface bus withMaster control set connects, for receiving the instruction of master control set and uploading temperature data to master control set；Radiofrequency melting instrument is alsoIncluding: temperature sensing circuit, it is connected with the second processor, for the temperature data of detected target object.
Further, radiofrequency melting instrument also includes: data-interface, is connected with master control set；Numeral method device, withData-interface connects, for obtaining and show the work of the temperature data of master control set, rf data and radiofrequency melting instrumentMake the time；Fluorescence display, is connected with data-interface, for showing actions menu and the radio-frequency (RF) ablation of radiofrequency melting instrumentThe work state information of instrument；Key device, is connected with data-interface, for receiving operation signal based on actions menu；Auditory tone cues device, is connected with data-interface, sends prompt tone for duty based on radiofrequency melting instrument.
Further, RF powder control device includes: the 3rd processor, by SPI serial peripheral interface bus withMaster control set connects, and for receiving the instruction of master control set and uploading data message to master control set, wherein, data are believedBreath includes the value of the radio-frequency (RF) energy that radio-frequency (RF) energy output circuit exports.
Further, radiofrequency melting instrument also includes: RCI, is connected with master control set, is used for receiving remotelyControl signal.
Further, radiofrequency melting instrument also includes: charge pump controls interface, is connected to RF powder control device and fillingBetween note pump, carrying out bidirectional data transfers for radiofrequency melting instrument and charge pump, wherein, charge pump controls interface and isRS232 EBI.
To achieve these goals, another aspect according to embodiments of the present invention, it is provided that the control of a kind of radiofrequency melting instrumentMethod processed.The control method of the radiofrequency melting instrument according to the present invention includes: obtain temperature data and the radio frequency of destination objectData；Control signal is generated based on temperature data and rf data；Radio-frequency (RF) energy is exported according to control signal.
Further, generate control signal based on temperature data and rf data to include: based on radio-frequency voltage difference with penetrateFrequently voltage change ratio calculates the first step value of radio-frequency voltage, calculates based on radio-frequency current difference and radio-frequency current rate of changeSecond step value of radio-frequency current, calculates the 3rd step of radio-frequency power based on radio-frequency power difference and radio-frequency power rate of changeEnter value, and calculate the 4th step value of temperature data based on temperature gap and rate of temperature change；Determine the first step value,Minimum step value in second step value, the 3rd step value and the 4th step value；Generate based on minimum step value and controlSignal, wherein, rf data includes radio-frequency voltage, radio-frequency current and radio-frequency power.
Further, generate control signal based on minimum step value and include: if minimum step value is not in preset range,Then read default control step value；If minimum step value is in preset range, it is determined that minimum step value is for controlling stepEnter value；Generate and control the control signal that step value is corresponding.
To achieve these goals, another aspect according to embodiments of the present invention, it is provided that the control of a kind of radiofrequency melting instrumentDevice processed.The control device of the radiofrequency melting instrument according to the present invention includes: the first acquisition module, is used for obtaining target pairThe temperature data of elephant and rf data；First generation module, controls letter for generating based on temperature data and rf dataNumber；First output module, for exporting radio-frequency (RF) energy according to control signal.
Further, the first generation module includes: computing module, for based on radio-frequency voltage difference and radio frequency electrical bucklingRate calculates the first step value of radio-frequency voltage, calculates radio-frequency current based on radio-frequency current difference and radio-frequency current rate of changeThe second step value, calculate the 3rd step value of radio-frequency power based on radio-frequency power difference and radio-frequency power rate of change, withAnd the 4th step value of temperature data is calculated based on temperature gap and rate of temperature change；Determine module, be used for determining firstMinimum step value in step value, the second step value, the 3rd step value and the 4th step value；Second generation module,For generating control signal based on minimum step value, wherein, rf data includes radio-frequency voltage, radio-frequency current and penetratesFrequently power.
Further, the second generation module includes: the second acquisition module, if for minimum step value not in preset rangeIn, then obtain and preset step value for controlling step value；Second output module, if for minimum step value in preset rangeIn, then output minimum step value is for controlling step value；3rd generation module, controls, for generating, the control that step value is correspondingSignal processed.
Use the present invention, to utilize supply unit be master control set, temp detecting controller, radio frequency detection control apparatus,RF powder control device and rf power amplifier circuit provide running voltage, get at temp detecting controllerAfter the temperature data of destination object, radio frequency detection control apparatus get the rf data of destination object, master control setGenerating control signal according to the temperature data obtained and rf data, what then regulation rf power amplifier circuit exported penetratesFrequently energy.Use the present invention, can with the temperature data of Real-time Collection destination object and rf data, and utilize collectTemperature data and rf data correct rf power amplifier circuit output radio-frequency (RF) energy, it is achieved that to radio-frequency (RF) ablationThe accurate control of the radio-frequency (RF) energy of instrument output.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phasesCombination mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with in the embodiment of the present inventionAccompanying drawing, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that described embodimentIt is only the embodiment of a present invention part rather than whole embodiments.Based on the embodiment in the present invention, abilityThe every other embodiment that territory those of ordinary skill is obtained under not making creative work premise, all should belong toThe scope of protection of the invention.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "Two " it is etc. for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that thisThe data that sample uses can be exchanged in the appropriate case, in order to embodiments of the invention described herein.Additionally, term" include " and " having " and their any deformation, it is intended that cover non-exclusive comprising, such as, compriseThe process of series of steps or unit, method, system, product or equipment are not necessarily limited to those steps clearly listedRapid or unit, but can include that the most clearly list or intrinsic for these processes, method, product or equipmentOther step or unit.
Embodiments provide a kind of radiofrequency melting instrument.Fig. 1 is radiofrequency melting instrument according to embodiments of the present inventionSchematic diagram.As it is shown in figure 1, this radiofrequency melting instrument includes: the detection of temp detecting controller 110, radio frequency controls dressPut 120, master control set 130, RF powder control device 140, rf power amplifier circuit 150 and supply unit160。
Wherein, temp detecting controller, it is connected with master control set, for obtaining the temperature data of destination object；PenetrateFrequently detection control apparatus, is connected with master control set, for obtaining the rf data of destination object；Master control set, is used forControl signal is generated according to temperature data and rf data；RF powder control device, is connected with master control set；Radio frequencyPower amplification circuit, is connected between RF powder control device and ablating device 170 (as shown in Figure 1), radio frequencyOutput control device according to control signal control rf power amplifier circuit by ablating device export radio-frequency (RF) energy, wherein,Radio-frequency (RF) energy is used for ablation targets object；Supply unit, with master control set, temp detecting controller, radio frequency detectionControl device, RF powder control device and rf power amplifier circuit to connect, for examining for master control set, temperatureObserving and controlling device, radio frequency detection control apparatus, RF powder control device and rf power amplifier circuit offer workVoltage.
Using embodiments of the invention, to utilize supply unit be master control set, the detection of temp detecting controller, radio frequencyControl device, RF powder control device and rf power amplifier circuit and provide running voltage, in temperature detection controlAfter the rf data that device gets the temperature data of destination object, radio frequency detection control apparatus gets destination object,Master control set generates control signal according to the temperature data obtained and rf data, then regulates rf power amplifier circuitThe radio-frequency (RF) energy of output.In an embodiment of the present invention, can be with the temperature data of Real-time Collection destination object and radio frequency numberAccording to, and utilize the temperature data that collects and rf data to correct the radio-frequency (RF) energy of rf power amplifier circuit output,Achieve the accurate of the radio-frequency (RF) energy to radiofrequency melting instrument output to control.
Alternatively, radiofrequency melting instrument can include that supply unit, rf power amplifier circuit, testing circuit are (such as impedanceTesting circuit, radio-frequency voltage testing circuit, radio-frequency current testing circuit and temperature sensing circuit etc.) and human-machine interfaceMouth device (numeral method device, fluorescence display, key device and auditory tone cues device etc.) 4 major part.
Radiofrequency melting instrument can include five microprocessors, and a primary processor (i.e. master control set) and four are from processDevice (i.e. first processor, the second processor, the 3rd processor and sound control processor), wherein, first processesDevice is used for controlling radio frequency detection control apparatus, and the second processor is used for controlling temp detecting controller, the 3rd processorFor controlling RF powder control device, sound control processor is used for controlling auditory tone cues device.Each microprocessorBeing embedded with control software, be used for controlling corresponding device or circuit, primary processor can be connect by SPI serial peripheralMouth bus is connected from processor with four, such that it is able to send control signal to from processor, receives from processor and controlsSignal also controls corresponding hardware circuit (such as impedance detection circuit) collection data message (such as the impedance of destination object),And upload data message to primary processor, primary processor shows corresponding data by panel (such as digital tube display)Information.
Owing to, in prior art, radiofrequency melting instrument typically uses single MCU (microprocessor) to realize its function, fromAnd make the task of single microprocessor heavier and easily break down, when certain section failure of radiofrequency melting instrument, canComplete machine can be caused to paralyse, thus affect the experience of user, in some instances it may even be possible to cause personal injury；Due to single micro-placeThe pin resource of reason device is less, and when upgrading equipment, design difficulty is relatively big, i.e. allows to upgrading, it is also possible to causeIncrease or this partial function circuit job insecurity of amendment, even can affect the work of other circuit.Use the present inventionThe technological means of above-mentioned multi-microprocessor, the problems referred to above can be efficiently solved.
Below in conjunction with Fig. 2 in detail embodiments of the invention being described in detail, radio frequency detection control apparatus may include that first processor (figureNot shown in 2), it is connected with master control set 130 by SPI serial peripheral interface bus, for receiving master control setInstruction also uploads rf data to master control set.Radiofrequency melting instrument can also include: at least one road impedance detection circuit121, it is connected with first processor, for the impedance of detected target object；At least one tunnel radio-frequency voltage testing circuit 123,It is connected with first processor, for the radio-frequency voltage of detected target object；At least one road radio-frequency current testing circuit 125,Being connected with first processor, for the radio-frequency current of detected target object, wherein, rf data includes impedance, radio frequencyVoltage and radio-frequency current.
Specifically, the first processor of radio frequency detection control apparatus passes through SPI serial peripheral interface bus and master control setConnect, to realize bidirectional data transfers, after first processor receives the radio-frequency voltage detection signal of master control set,First processor utilizes two-way radio-frequency voltage testing circuit to detect same radio frequency voltage signal, when two-way radio frequency electrical simultaneouslyWhen the detected value (i.e. radio-frequency voltage) of pressure testing circuit is consistent, then by the detected value (i.e. radio-frequency voltage) of this radio-frequency voltageIt is uploaded to master control set by SPI serial peripheral interface bus.
Alternatively, time as inconsistent in the detected value (radio-frequency voltage) of two-way radio-frequency voltage testing circuit, then may have oneRoad radio-frequency voltage testing circuit there occurs fault, and radiofrequency melting instrument will quit work and pass through numeral method device harmonySound prompting apparatus provides warning message.Radio-frequency current testing circuit, radio-frequency voltage testing circuit and radio-frequency current detection electricityRoad have employed Redundancy Design, when circuit breaks down, it is possible to real-time monitors and stop the operation of radiofrequency melting instrument,Radiofrequency melting instrument is avoided to export excessive radio-frequency (RF) energy and destination object is caused damage.
By the above embodiment of the present invention, use the same signal of multi-way detecting electric circuit inspection, to correct radiofrequency melting instrumentThe radio-frequency (RF) energy of output, the stability of radiofrequency melting instrument can be improved, it is achieved that the accurate control to output radio-frequency (RF) energySystem.
Alternatively, radiofrequency melting instrument can be connected with ablation catheter.Wherein, ablation catheter can be to comprise multiple meltingThe mesh electrode conduit of electrode, radiofrequency melting instrument can export radio-frequency (RF) energy to multiple ablating electrode timesharing of ablation catheter,Multiple ablation points or a complete ablation line is formed at an ablation procedure.
Alternatively, radiofrequency melting instrument can be connected with two or more neutral electrodes, such that it is able to dispersion is penetrated effectivelyFrequently electric current, it is to avoid the destination object of burning because neutral electrode temperature is too high.
Further, ablation catheter is internally provided with temperature sensor, to gather and to upload the temperature letter at ablating electrodeBreath, radiofrequency melting instrument regulates the distribution of the radio-frequency (RF) energy of multiple ablating electrodes according to this temperature information, to reach once to disappearThe process of melting forms multiple ablation points, have easy and simple to handle, melt the effect that efficiency is high.
By above-described embodiment, ablation catheter is utilized to enter in destination object body, the ablating electrode of ablation catheter and targetThe ablation site contact of object, neutral electrode can contact with the surface skin of destination object, when radiofrequency melting instrument worksTime, radio-frequency current flows through ablating electrode, destination object and neutral electrode and forms loop, in the position at ablating electrode placePut output radio-frequency (RF) energy, and form an ablation points.
Further, radiofrequency melting instrument can also include: neutral electrode detection circuit 127 (as shown in Figure 2), withOne processor connects, for detecting the connection status of neutral electrode；First processor is additionally operable to upload the company of neutral electrodeThe state that connects is to master control set.
Specifically, the pumping signal of 100KHz is applied on coupling transformer by radiofrequency melting instrument, coupling transformerSecondary coil is connected with rf power amplifier circuit, when neutral electrode is connected with radiofrequency melting instrument, coupling transformerPrimary coil short circuit, neutral electrode detection circuit just can detect low level；When neutral electrode breaks with radiofrequency melting instrumentWhen opening, the primary coil open circuit of coupling transformer, neutral electrode detection circuit just can detect high level, thus canTo determine the connection state of neutral electrode according to the high level detected or low level.
Alternatively, if radiofrequency melting instrument is connected with two or more neutral electrodes, then neutral electrode detection circuit is alsoTwo-way or the electric current of multichannel neutral electrode can be detected, to prevent the electric current at neutral electrode excessive, it is achieved right simultaneouslyThe accurate control of the radio-frequency (RF) energy of output, improves stability and the safety of equipment.
Pass through above-described embodiment, it is possible to effectively detect connection status and the quantity of neutral electrode, and detection flows through neutralityThe radio-frequency current of electrode, can be effectively prevented because neutral electrode electric current is excessive, temperature is too high and destination object of burning,Meanwhile, when radiofrequency melting instrument break down (as neutral electrode be not connected with, temperature the most high) time, can by displayDevice (such as digital tube display) and sound prompting apparatus give a warning information.
According to the abovementioned embodiments of the present invention, as in figure 2 it is shown, supply unit 160 (not shown in Fig. 2) can wrapInclude: power input interface 161, for input AC electricity；First AC/DC changeover switch 162, with power input interface evenConnect, for alternating current being converted to the first unidirectional current；Second AC/DC changeover switch 163, is connected to power input interfaceBetween 161 and rf power amplifier circuit 150, it is that radio-frequency power amplifies for alternating current being converted to the second unidirectional currentCircuit provides running voltage.Dc chopper device (not shown in Fig. 2) may include that the first direct current transducer 164,It is connected between the first AC/DC changeover switch and master control set 130, for the first unidirectional current is converted to the 3rd unidirectional currentRunning voltage is provided for master control set；Second direct current transducer 165, is connected to the first direct current transducer and radio-frequency powerControl, between device 140, to provide work for the 3rd unidirectional current is converted to the 4th unidirectional current for RF powder control deviceMake voltage；3rd direct current transducer 166, is connected between the first AC/DC changeover switch and the 4th direct current transducer, usesIn the first unidirectional current is converted to the 5th unidirectional current；4th direct current transducer 167, with temp detecting controller 110Connect with radio frequency detection control apparatus 120, be temperature detection control for the 5th unidirectional current is converted to the 6th unidirectional currentDevice and radio frequency detection control apparatus provide running voltage, wherein, the second unidirectional current, the 3rd unidirectional current, the 4th direct currentElectricity, the 5th unidirectional current and the 6th galvanic magnitude of voltage are different from the first galvanic magnitude of voltage.
Need it is further noted that existing radiofrequency melting instrument all uses linear power supply to power, and the electricity consumption of countries in the worldStandard is not quite similar, and therefore its versatility is poor, and linear power supply has that volume is big, efficiency is low, easy heating withAnd the shortcoming that electromagnetic interference is stronger, the stability of radiofrequency melting instrument even can be produced bigger by its stronger electromagnetic interferenceImpact.The application provide technical scheme in, have employed AC/DC Switching Power Supply (i.e. AC/DC changeover switch) withThe mode that DC/DC Switching Power Supply (i.e. direct current transducer) is combined, can be by the first AC/DC changeover switch 100VAlternating current to 240V (frequency is 50Hz or 60Hz) is converted into the unidirectional current of 48V, then is turned by the 3rd direct currentParallel operation is converted into the unidirectional current of 12V the unidirectional current of 48V, then by the 4th direct current transducer the direct current of 12VElectricity is converted into required system voltage, to meet the operating voltage requirement of radiofrequency melting instrument.
Utilize the supply unit that above-described embodiment provides, supply district be 100V to 240V (frequency be 50Hz orTime 60Hz), it is not required to utilize external equipment to change input voltage, radiofrequency melting instrument can be met in different geographical countryUse demand.Meanwhile, the advantage that above-mentioned supply unit has small volume, electromagnetic interference is little, also have soft start andThe functions such as over-current over-voltage protection, it is possible to preferably meet the safety requirements of medical electric equipment.
In the above-described embodiments, temp detecting controller may include that the second processor, by SPI serial peripheralInterface bus is connected with master control set, for receiving the instruction of master control set and uploading temperature data to master control set；PenetrateFrequently ablatograph also includes: temperature sensing circuit 111 (as shown in Figure 2), is connected with the second processor, is used for detecting meshThe temperature data of mark object.
Specifically, after the second processor receives the temperature detection instruction that master control set issues, can be examined by temperatureSlowdown monitoring circuit obtains temperature data and is uploaded to master control set by SPI serial peripheral interface bus, and master control set willTemperature data is shown by numeral method device.There is one or more to disappear for detection in the inside of ablation catheterMelting the temperature sensor of the temperature of electrode, by the temperature data that collects, (temperature data now is mould in temperature sensorIntend signal) transmission is to temperature detection control circuit, and then simulation is believed by temperature detection control circuit by analog-digital converterNumber temperature data be converted to the temperature data of digital signal.
By above-described embodiment, the temperature number of ablating electrode (i.e. the ablation site of destination object) can be obtained in real timeAccording to, and temperature is shown in real time, simultaneously, it is possible to use the temperature data of acquisition corrects radiofrequency melting instrumentOutput energy.
Below in conjunction with Fig. 2 and Fig. 3 in detail embodiments of the invention are described in detail.
As in figure 2 it is shown, radiofrequency melting instrument can also include: data-interface (not shown in Fig. 2), with master control set evenConnect；Numeral method device 191, is connected with data-interface, for obtaining and show the temperature data of master control set, penetratingFrequency is according to this and the working time of radiofrequency melting instrument；Fluorescence display 193, is connected with data-interface, penetrates for displayFrequently the actions menu of ablatograph and the work state information of radiofrequency melting instrument；Key device 195, is connected with data-interface,For receiving operation signal based on actions menu；Auditory tone cues device 197, is connected with data-interface, for based on penetratingFrequently the duty of ablatograph sends prompt tone.
As it is shown on figure 3, Fig. 3 schematically shows numeral method device 191, fluorescence display 193, button dressPut 195, data-interface and sound prompting apparatus not shown in Fig. 3.Auditory tone cues device is total by SPI Serial Peripheral Interface (SPI)Line is connected with master control set, and master control set sends and radio-frequency (RF) ablation by issuing sound control signal control auditory tone cues deviceThe sound that instrument duty matches.
By above-described embodiment, improve the controllable property of radiofrequency melting instrument, user can be penetrated by key device manipulationFrequently ablatograph, is completed the setting of various parameter, and can be shown every work of radiofrequency melting instrument by display in real timeMaking parameter, beneficially user operates further according to parameter.
Alternatively, radiofrequency melting instrument can also include: RCI 199 (as shown in Figure 2), with master control setConnect, be used for receiving remote control signal.
Specifically, radiofrequency melting instrument can be connected with miscellaneous equipment (such as charge pump) by RCI, fromAnd realize the radiofrequency melting instrument control function to miscellaneous equipment.
In the above-described embodiments, RF powder control device may include that the 3rd processor, by SPI serial peripheralInterface bus is connected with master control set, for receiving the instruction of master control set and uploading data message to master control set, itsIn, data message includes the value of the radio-frequency (RF) energy that radio-frequency (RF) energy output circuit exports.
Specifically, after master control set receives temperature data and rf data, temperature data and rf data are doneAnalyzing and processing, as the current radio frequency recorded voltage and target radio frequency voltage compared, then generates correction radio-frequency (RF) energyControl signal and send control signals to the 3rd processor, the 3rd processor further according to control signal adjust radio frequency meritThe radio-frequency (RF) energy of rate amplifying circuit output.
Alternatively, rf power amplifier circuit is connected between the 3rd processor and ablating device, and radio-frequency power controls dressPut the radio-frequency (RF) energy that can be controlled rf power amplifier circuit output by the 3rd processor.
By above-described embodiment, the output energy of monitoring radiofrequency melting instrument that can be real-time, when output radio-frequency (RF) energy andWhen desired value differs, can be corrected in real time so that it meets the requirement of user.
Alternatively, radiofrequency melting instrument can also include: charge pump controls interface 141 (as shown in Figure 2), is connected to penetrateFrequently, between output control device and charge pump, bidirectional data transfers is carried out for radiofrequency melting instrument and charge pump, wherein,It is RS232 EBI that charge pump controls interface.
Specifically, in actual applications, needing to coordinate radiofrequency melting instrument and work together with charge pump, the application providesRadiofrequency melting instrument can pass through RS232 EBI (i.e. charge pump control interface) and be connected with charge pump, thus realizesAssociated working.Its work process will be described below:
When radiofrequency melting instrument and charge pump are used in combination, the status information (such as irrigation rate) of charge pump passes through RS232EBI transmission shows to radiofrequency melting instrument and by display (such as digital tube display).By ablation catheterBeing connected to radiofrequency melting instrument, charge pump can realize perfusion by being positioned at the perfusion conduit within ablation catheter, and perfusion is ledOne end of pipe is connected with charge pump, if radiofrequency melting instrument does not melts, the irrigation rate of charge pump is not zero, but withRelatively low irrigation rate work, to ensure the unimpeded of perfusion conduit, if radiofrequency melting instrument melts, will send perfusion and refer toMaking to charge pump, so that charge pump is with higher irrigation rate work, meanwhile, charge pump is by state letters such as irrigation ratesCease and be uploaded to radiofrequency melting instrument in real time by RS232 EBI, and by display (such as digital tube display)Show.
Alternatively, the ablating electrode of ablation catheter there are aperture, perfusion conduit can export normal saline by aperture,When melting, the irrigation flow of charge pump is relatively big, and when stopping melting, charge pump is switched to low discharge perfusion.
By the above embodiment of the present invention, can cutting by the irrigation rate of charge pump control Interface Controller charge pumpChanging, irrigate normal saline while melting, the normal saline of output can reduce the temperature around ablating electrode, risesTo protective effect, moreover it is possible to increase the degree of depth melted, overcome the defect of radiofrequency melting instrument function singleness.
Need it is further noted that radiofrequency melting instrument additionally uses distributed bus control technology, each detection and controlDevice has modular feature, by spi bus, each detection and control device is linked together so that it is haveWell autgmentability, it is possible to increase and revise its function easily, also simplify the design of circuit simultaneously.The application'sRadiofrequency melting instrument have employed five independent microprocessors, including a primary processor and four from processor, four fromProcessor can be with the respective function of complete independently, and primary processor is visited with master slave system by SPI serial peripheral interface busAsk and control the work from processor.
All only complete the part work in complete machine due to every a piece of MCU (microprocessor), task is the most single, makesThe design difficulty obtaining every MCU program reduces, and also advantageously improves the reliability and stability of each several part.When certain portionWhen dividing functional circuit to need to increase or revise, it is only necessary to revising corresponding circuit, other parts all need not amendment,Reduce the workload of designer, there is the advantage that autgmentability is strong.Even if when the circuit malfunctions of certain part,Other circuit remains to normally work, and improves the safety and stability of complete machine.
Alternatively, as in figure 2 it is shown, radiofrequency melting instrument can also include electro-physiological signals output interface 143, forMultiple tracks electrophysiologic monitoring equipment sending data information (such as electro-physiological signals), receives what multiple tracks electrophysiologic monitoring equipment sentContact information.
Alternatively, as in figure 2 it is shown, radiofrequency melting instrument can also include isolating device 180, it is used for as radiofrequency melting instrumentInternal power device provides a common earth point, can avoid the electricity that radiofrequency melting instrument internal circuit produces simultaneouslyMagnetic disturbance, plays the protective effect to circuit, and then improves stability and the reliability of radiofrequency melting instrument.
Using embodiments of the invention, to utilize supply unit be master control set, the detection of temp detecting controller, radio frequencyControl device, RF powder control device and rf power amplifier circuit and provide running voltage, in temperature detection controlAfter the rf data that device gets the temperature data of destination object, radio frequency detection control apparatus gets destination object,Master control set generates control signal according to the temperature data obtained and rf data, then regulates rf power amplifier circuitThe radio-frequency (RF) energy of output.In an embodiment of the present invention, can be with the temperature data of Real-time Collection destination object and radio frequency numberAccording to, and utilize the temperature data that collects and rf data to correct the radio-frequency (RF) energy of rf power amplifier circuit output,Achieve the accurate of the radio-frequency (RF) energy to radiofrequency melting instrument output to control.
Embodiments provide the control method of a kind of radiofrequency melting instrument.
Fig. 4 is the flow chart of the control method of radiofrequency melting instrument according to embodiments of the present invention.As shown in Figure 4, the partyMethod comprises the following steps that
Step S402, obtains temperature data and the rf data of destination object.
Step S404, generates control signal based on temperature data and rf data.
Step S406, exports radio-frequency (RF) energy according to control signal.
Use the present invention, when radiofrequency melting instrument works, obtain temperature data and the rf data of destination object, thenGenerate control signal based on the temperature data obtained and rf data, and adjust radiofrequency melting instrument output according to control signalRadio-frequency (RF) energy.By obtaining temperature data and rf data in real time, can accurately determine current temperature data withThe difference of target temperature, current radio frequency data and the difference of target radio frequency data, carry out school with the radio-frequency (RF) energy to outputJust, meet the demand of user, it is achieved that the accurate control to the radio-frequency (RF) energy of radiofrequency melting instrument output, improve radio frequencyThe reliability of ablatograph.
In the above-described embodiments, generate control signal based on temperature data and rf data to may include that based on radio frequency electricalPressure difference and radio-frequency voltage rate of change calculate the first step value of radio-frequency voltage, based on radio-frequency current difference and radio-frequency currentRate of change calculates the second step value of radio-frequency current, calculates radio frequency merit based on radio-frequency power difference and radio-frequency power rate of change3rd step value of rate, and the 4th step value of temperature data is calculated based on temperature gap and rate of temperature change；DetermineMinimum step value in first step value, the second step value, the 3rd step value and the 4th step value；Based on small stepEntering value and generate control signal, wherein, rf data includes radio-frequency voltage, radio-frequency current and radio-frequency power.
Specifically, the first step value, the second step value and the 3rd step value are being calculated and according to temperature according to rf dataThe algorithm used when degrees of data calculates four step values is that PI (proportional integral) regulates algorithm, by radio-frequency power, penetratesFrequently voltage, radio-frequency current and temperature data calculate corresponding step value according to PI regulation algorithm respectively, and according to obtainingMinimum step value to output radio-frequency (RF) energy (or radio-frequency power) be adjusted so that output radio-frequency (RF) energy and meltThe temperature of electrode meets the demand of user.
Below in conjunction with Fig. 5 in detail embodiments of the invention are described in detail.As shown in Figure 5:
Step S502, it is judged that whether radio-frequency power is arranged is zero.
Radio-frequency power arranges the parameter of the target radio frequency power being intended to indicate that user inputs, if this parameter is zero, then holdsRow step S504；If this parameter is not zero, then perform step S506.
Step S504, by radio frequency control word zero setting.
Radio frequency control word is the parameter being associated with control signal, and radio frequency control word zero setting being represented, control signal is usedRadio-frequency (RF) energy in instruction radiofrequency melting instrument output is zero.
Step S506, it is judged that rf data whether exception or transfinite.
If the scope of the rf data that radiofrequency melting instrument is capable of identify that is 0 to 100 (unit is watt), and user setsRf data in the range of 0 to 60 (unit is watt), the rf data detected when radiofrequency melting instrument is 30Time, these data are normal；When the rf data that radiofrequency melting instrument detects is 120, this data over run is (i.e.Scope beyond radiofrequency melting instrument identification)；When the rf data that radiofrequency melting instrument detects is 80, this numberAccording to abnormal (i.e. in the range of radiofrequency melting instrument identification, but having exceeded the scope of user setup).
If rf data exception or transfinite, perform step S504, if rf data is the most abnormal and does not transfinite, holdRow step S508.
Step S508, the first step value=coefficient 1 × radio-frequency power difference-coefficient 2 × radio-frequency power rate of change.
Step S510, the second step value=coefficient 3 × radio-frequency voltage difference-coefficient 4 × radio-frequency voltage rate of change.
Step S512, three step values=coefficient 5 × radio-frequency current difference-coefficient 6 × radio-frequency current rate of change.
Wherein, step value (such as the first step value) refers to that radio-frequency (RF) energy increases each time under control of the control signalValue.Coefficient 1 to coefficient 6 is proportion integral modulus, is the value or empirical value drawn according to experimental data, radio frequency meritRate difference refers to the difference between target radio frequency power and current radio frequency power (radio-frequency power i.e. recorded), radio frequency meritRate rate of change refers to the difference between the radio-frequency power that current radio frequency power and last time record, and radio-frequency voltage difference refers toDifference between target radio frequency voltage and current radio frequency voltage (radio-frequency voltage i.e. recorded), radio-frequency voltage rate of change isDifference between the radio-frequency voltage that finger current radio frequency voltage and last time record, radio-frequency current difference refers to target radio frequency electricityDifference between stream and current radio frequency electric current (radio-frequency current i.e. recorded), radio-frequency current rate of change refers to current radio frequencyDifference between the radio-frequency current that electric current and last time record.
Step S514, it is judged that temperature data whether exception or transfinite.
Implication that is abnormal and that transfinite describes in detail in step S506, does not repeats them here.
If temperature data exception or transfinite, then perform step S504, if temperature data is the most abnormal and does not transfinite, holdRow step S516.
Step S516, four step values=coefficient 7 × temperature gap-coefficient 8 × rate of temperature change.
Wherein, coefficient 7 and coefficient 8 are proportion integral modulus, are the values or empirical value drawn according to experimental data.Temperature gap refers to the difference between target temperature and Current Temperatures (temperature data i.e. recorded), and rate of temperature change isDifference between the temperature that finger Current Temperatures and last time record.
Step S518, controls step value=the first step value, the second step value, the 3rd step value and the 4th step valueIn minimum step value.
I.e. determine the minimum step value in the first step value, the second step value, the 3rd step value and the 4th step value,And the value of minimum step value is given control step value.
Alternatively, if based on minimum step value generate control signal may include that minimum step value not in preset range,Then read default control step value；If minimum step value is in preset range, it is determined that minimum step value is for controlling stepEnter value；Generate and control the control signal that step value is corresponding.
The above embodiment of the present invention can be realized by step as shown in Figure 5.As shown in Figure 5:
Step S520, it is judged that whether control step value beyond limiting.
I.e. judge whether to control step value beyond preset range.If control step value is beyond preset range, then performStep S522；If control step value is without departing from preset range, then perform step S524.
Step S522, reads the control step value preset.
When controlling step value beyond preset range, then read default control step value.
Step S524, gives radio frequency by the value controlling step value and controls step value.
When controlling step value without departing from preset range, then give radio frequency by the value controlling step value and control step value,Otherwise, then giving radio frequency by default control step value and control step value, it is to control letter with radio frequency that radio frequency controls step valueNumber another parameter that (i.e. control signal) is associated, for the value indicating radio-frequency (RF) energy to increase each time.
Step S526, exports RF control signal.
By above-described embodiment, after getting minimum step value, detection minimum step value whether in preset range,The safety and stability of equipment can be improved further.
Alternatively, if target radio frequency power is 60 (unit is watt), target radio frequency voltage be 30 (unit is volt),Target radio frequency electric current be 2 (unit is ampere), target temperature be 50 (unit for degree Celsius), coefficient 1, coefficient 3,Coefficient 5 and coefficient 7 are 1, and coefficient 2, coefficient 4, coefficient 6 and coefficient 8 are 0, and the radio-frequency power recorded is45, radio-frequency voltage be 25, radio-frequency current be 1.8, temperature data is 40 and the above-mentioned data recorded are normal, the most permissibleBe calculated the first step value be the 15, second step value be the 5, the 3rd step value be the 0.2, the 4th step value be 10,Determine minimum step value therein (the i.e. the 3rd step value), the value of minimum step value is given and controls step value, through sentencingThe disconnected value (preset range is 0 to 20) in preset range that may determine that control step value, then may determine that radio frequency controlThe value of step value processed is 0.2, is then based on radio frequency and controls step value generation control signal and export.
By above-described embodiment, use the radio-frequency (RF) energy of PI (proportional integral) regulation algorithm regulation radiofrequency melting instrument output,Can realize more being accurately controlled to radio-frequency (RF) energy, improve stability and the reliability of radiofrequency melting instrument, meanwhile,In radio-frequency voltage, radio-frequency current, radio-frequency power and temperature detection process, have employed Redundancy Design, work as radio-frequency (RF) ablationWhen instrument breaks down, it is possible to monitor in time and make equipment in a safe condition, it is to avoid because of the radio-frequency (RF) energy mistake of outputThe infringement caused greatly, improves the safety of radiofrequency melting instrument.
It should be noted that can be at such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawingComputer system performs, and, although show logical order in flow charts, but in some cases, canWith to be different from the step shown or described by order execution herein.
The embodiment of the present invention additionally provides the control device of a kind of radiofrequency melting instrument.It should be noted that the present invention implementsThe device that controls of the radiofrequency melting instrument of example may be used for performing the controlling party of the radiofrequency melting instrument that the embodiment of the present invention is providedMethod, the control method of the radiofrequency melting instrument of the embodiment of the present invention can also be disappeared by the radio frequency that the embodiment of the present invention is providedThe control device melting instrument performs.
Fig. 6 is the schematic diagram controlling device of radiofrequency melting instrument according to embodiments of the present invention.As shown in Figure 6, this dressPut and may include that the first acquisition module the 10, first generation module 20 and the first output module 30.
Wherein, the first acquisition module, for obtaining temperature data and the rf data of destination object；First generation module,For generating control signal based on temperature data and rf data；First output module, for exporting according to control signalRadio-frequency (RF) energy.
Use embodiments of the invention, when radiofrequency melting instrument works, obtain temperature data and the radio frequency number of destination objectAccording to, it is then based on temperature data and the rf data generation control signal obtained, and disappears according to control signal adjustment radio frequencyMelt the radio-frequency (RF) energy of instrument output.By obtaining temperature data and rf data in real time, current temperature can be accurately determinedDegrees of data and the difference of the difference of target temperature, current radio frequency data and target radio frequency data, with the radio frequency energy to outputAmount is corrected, it is achieved that the accurate control to the radio-frequency (RF) energy of radiofrequency melting instrument output, improves radiofrequency melting instrumentReliability.
Alternatively, the first generation module may include that computing module, for based on radio-frequency voltage difference and radio-frequency voltageRate of change calculates the first step value of radio-frequency voltage, calculates radio frequency electrical based on radio-frequency current difference and radio-frequency current rate of changeSecond step value of stream, calculates the 3rd step value of radio-frequency power based on radio-frequency power difference and radio-frequency power rate of change,And the 4th step value of temperature data is calculated based on temperature gap and rate of temperature change；Determine module, be used for determiningMinimum step value in one step value, the second step value, the 3rd step value and the 4th step value；Second generation module,For generating control signal based on minimum step value, wherein, rf data includes radio-frequency voltage, radio-frequency current and penetratesFrequently power.
By above-described embodiment, use the radio-frequency (RF) energy of PI (proportional integral) regulation algorithm regulation radiofrequency melting instrument output,Can realize more being accurately controlled to radio-frequency (RF) energy, improve stability and the reliability of radiofrequency melting instrument, meanwhile,In radio-frequency voltage, radio-frequency current, radio-frequency power and temperature detection process, have employed Redundancy Design, work as radio-frequency (RF) ablationWhen instrument breaks down, it is possible to monitor in time and make equipment in a safe condition, it is achieved that to radiofrequency melting instrument outputThe accurate control of radio-frequency (RF) energy, it is to avoid the infringement caused because the radio-frequency (RF) energy of output is excessive, improves radio-frequency (RF) ablationThe safety of instrument.
In the above-described embodiments, the second generation module may include that the second acquisition module, if for minimum step value notIn preset range, then obtain and preset step value for controlling step value；Second output module, if for minimum step valueIn preset range, then output minimum step value is for controlling step value；3rd generation module, is used for generating control steppingThe control signal that value is corresponding.
By above-described embodiment, after getting minimum step value, detection minimum step value whether in preset range,The safety and stability of equipment can be improved further.
The using method that modules provided in the present embodiment step corresponding with embodiment of the method is provided is identical, shouldCan also be identical by scene.It is noted, of course, that the scheme that above-mentioned module relates to can be not limited to above-mentioned enforcementContent in example and scene, and above-mentioned module may operate in terminal or mobile terminal, can by software orHardware realizes.
As can be seen from the above description, present invention achieves following technique effect:
Using embodiments of the invention, to utilize supply unit be master control set, the detection of temp detecting controller, radio frequencyControl device, RF powder control device and rf power amplifier circuit and provide running voltage, in temperature detection controlAfter the rf data that device gets the temperature data of destination object, radio frequency detection control apparatus gets destination object,Master control set generates control signal according to the temperature data obtained and rf data, then regulates rf power amplifier circuitThe radio-frequency (RF) energy of output.In an embodiment of the present invention, can be with the temperature data of Real-time Collection destination object and radio frequency numberAccording to, and utilize the temperature data that collects and rf data to correct the radio-frequency (RF) energy of rf power amplifier circuit output,Achieve the accurate of the radio-frequency (RF) energy to radiofrequency melting instrument output to control.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with generalCalculating device realize, they can concentrate on single calculating device, or is distributed in multiple calculating device instituteOn the network of composition, alternatively, they can realize with calculating the executable program code of device, it is thus possible toIt is stored in storing in device and is performed by calculating device, or they are fabricated to respectively each integrated circuit dieBlock, or the multiple modules in them or step are fabricated to single integrated circuit module realize.So, the present inventionIt is not restricted to any specific hardware and software combine.
It should be noted that for aforesaid each method embodiment, in order to be briefly described, therefore it is all expressed as one it beThe combination of actions of row, but those skilled in the art should know, the present invention not limiting by described sequence of movementSystem, because according to the present invention, some step can use other orders or carry out simultaneously.Secondly, art technologyPersonnel also should know, embodiment described in this description belongs to preferred embodiment, involved action and moduleNot necessarily necessary to the present invention.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not has the portion described in detail in certain embodimentPoint, may refer to the associated description of other embodiments.
In several embodiments provided herein, it should be understood that disclosed device, can be by other sideFormula realizes.Such as, device embodiment described above is only schematically, the division of the most described unit, onlyBeing only a kind of logic function to divide, actual can have other dividing mode when realizing, and the most multiple unit or assembly canTo combine or to be desirably integrated into another system, or some features can be ignored, or does not performs.Another point, is shownThe coupling each other shown or discuss or direct-coupling or communication connection can be by some interfaces, device or unitINDIRECT COUPLING or communication connection, can be being electrical or other form.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible toIt is that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.Above-mentioned integratedUnit both can realize to use the form of hardware, it would however also be possible to employ the form of SFU software functional unit realizes.
If described integrated unit realizes and as independent production marketing or use using the form of SFU software functional unitTime, can be stored in a computer read/write memory medium.Based on such understanding, technical schemeCompletely or partially can producing with software of the part that the most in other words prior art contributed or this technical schemeThe form of product embodies, and this computer software product is stored in a storage medium, including some instructions in order to makeObtain a computer equipment (can be personal computer, mobile terminal, server or the network equipment etc.) and perform thisAll or part of step of method described in each embodiment bright.And aforesaid storage medium includes: USB flash disk, read-only storageDevice (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory),The various media that can store program code such as portable hard drive, magnetic disc or CD.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this areaFor art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, madeAny modification, equivalent substitution and improvement etc., should be included within the scope of the present invention.